People in a profession over the years learn more and more about how to manage the public's expectations and get them to actually purchase insurance.

随着时间的推移,从事这一行的人们,掌握了越来越多的迎合公众期望的方法,并最终说服他们购买保险

耶鲁公开课 - 金融市场课程节选

The dealer will charge a higher price for you to buy the furniture than will give to you to purchase the furniture from you; that's how the dealer makes a difference.

中间商给你的报价,会比向你收购同样家具的开价高,这就是中间商如何赚取差价

耶鲁公开课 - 金融市场课程节选